Pipe-bending form.



No 748,237. PATENTED DEGL 29, 1903.

W. VANDERMAN.

PIPE BENDING FORM.

APPLICATION FILED JUNE 17. 1897.

N0 MODEL.

UNITED STATES fPatented December 29, 1903.

WILLIAM VANDERMAN,'OF WILLIMAN'IIC, CONNEC'IICUT.

PlPE-BENDING FORM.

SPECIFICATION forming part of Letters Patent No. 748,237, dated December29, 1903. Application filed June 17, 1897. Serial No. 641,128. (Nomodel.)

To all whom it may concern:

Be it known that 1, WILLIAM VANDERMAN, a citizen of the United States,and a resident of Willimantic, in the county of Windham and State ofConnecticut, have invented certain new and useful Improvements in Pipe-Bending Forms, full, clear, and exact description, whereby any oneskilled in the art can make and use the same.

The object of my invention is to provide a device for bending pipes thatmay be readily secured to a bench or like part and in which pipe ofvarying sizes may be readily formed to the required shape, the devicebeing of a size and construction to be readily carried by a workman as apart of the tools used by him. A form of device by the use of whichthese objects may be attained is illustrated in the accompanyingdrawings, in which Figure 1 is a top view of the device with parts ofthe forming-lever broken away. Fig. 2 is an end view of the same withthe forming-lever removed. Fig. 3 is a detail view showing a modifiedform of the'device. Fig. 4: is a view in central lengthwise sectionthrough the device.

In the accompanying drawings the letter a denotes a support constructedfrom any de:

sired material, preferably iron, cast to shape and having lugs a, bymeans of which the support may be secured to any desired object, thelugs being provided with holes for the reception of screw-bolts or thelike. The outer edge of this support is curved, preferably, in the arcof a circle for a portion at least of its length, and a groove 1),serving as a form, is located in the curved portion. A base 0 extendsfrom the rear end of the support, and to this base in rear of the formis secured an anchor 01, having a socket d. This anchor may be formedintegral with the base and support, if desired; but in the preferredform of the invention the anchor is adjustably secured to the base bymeans of interengaging screw-threaded parts, this accommodating thedevice for use with difierent sizes of pipe and providing means forvarying the distance between the upper part of the socket d and thelower edge of the form I) to equal at all times the diameter of the ofwhich the following is a' pipe being formed. Bolt-holes 0' may be formedin this base as an additional means of securing the device in position.

A device constructed as above described is applicable for use instraightening a length of bent pipe, for making an ofiset in a length ofpipe, or for bending it to any desired curve, the device being easilyand quickly affixed to any object or detached therefrom.

In order to facilitate the forming of a length of pipe, a forming-leveris pivoted to the support a, preferably at the center of a circle ofwhich the form I) is an are. This forming-lever consists of arms e,pivoted at one end to lugs f, projecting from the support a. A former gis secured to the upper ends of these arms overlying the form bin thesupport, the former being preferably curved to correspond with the form.A socket g is located in the former, in which may be inserted a handleit.

The arms e and former 9 may be constructed of a single piece, ifdesired, with or without means of adjustment and yet come within thescope of the invention; but in the preferred form a means ofadjustmentof the former to accommodate different sizes of pipe ispreferred. Neither doIdesire to limit myself to the precise means ofadjustment of the former herein described, and any means of adjustmentwill come within the scope, of the invention.

I claim as my invention- 1. In a pipe-bending form, a support providedwith a form, an anchor in rear of the form and provided with means forvertical adjustment and having an opening adapted to receive a pipe, andmeans for shaping a pipe on the form.

2. In a pipe-bending form, a support provided with a form and a baseextending from the rear bottom part of the form, an anchor secured tothe base in rear of the form and having an opening adjustably arrangedin line with the form and adapted to receive a pipe, and means forshaping a pipe on the form.

3. In a pipe-bending form, a support provided with a form and a baseextending from the rear of the form, an anchor mounted in the base andadjustable depthwise thereof ro ed to receive a pipe.

5. In a pipe-bending form, a support provided with a form, arms pivotedon opposite sides of the support, a forming-lever adjustably secured tosaid arms and havinga socket arranged to removably receive a handle, andan anchor adjustably arranged with respect to the form and adapted tohold a plpe.

WILLIAM VANDERMAN. Witnesses:

ARTHUR B. JENKINS, ERMA P. COFFRIN.

